请问这样的SQL语句怎样写? select year,month,sum(num1) as num1, sum(sum2) as num2 from tab group by year,monthgo 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 select year,month,sum(num1) as num1, sum(sum2) as num2 from tab group by year,monthgo select year,month,sum(num1) as num1,sum(num2) as num2from tabgroup by year,monthorder by 1,2 select year,month,sum(num1) num1, sum(sum2) num2 from tab group by year,monthgo 全文索引,关键字的使用!! 再问查询!!!! 在线等待! 关于数据导入问题,在线等,速结!! 新新人!插入数据的流程. SQL高手请进! 求助!!! SQL Server服务已打开,企业管理器与查询分析器均提示连接超时,请问该如何解决? SQL统计汇总的问题,请高手指教 公司面试:关于开发SQL语言编译器的,这种编译器起什么作用啊? ODBC或OLE DB等接口是否可以直接访问SQL Server 数据库? 主外键表的插入更新 今天对公司的程序进行测试与到的问题!给意见的都有分! SELECT field INTO variable怎么用的,顺便散分
from tab group by year,month
go
from tab
group by year,month
order by 1,2
from tab group by year,month
go